|
|
|
Your donations help keep this valuable resource free and growing. Thank you.
|
non numeric head casting |
Post Reply 
|
Page 12> |
| Author | |
alexrains 
Supporter of TheAMCForum 
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: non numeric head castingPosted: Mar/29/2017 at 1:14am |
|
Dear experts,
got proof now, that my 71 Jav AMX has a 290 in it (should have been a 360). Head casting is "3178453-1", which is easy to decode. But the character stamping says "AG" (capital) and there is no other date stamp (I mean that "clock" thing). 902H28 is the valve cover tag, so that would fit and tell me, it is a 1967 290 2bbl originally. Any hint, what AG is? Thank you, Alex. |
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
 |
|
|
farna
Supporter of TheAMCForum
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Online Points: 19689 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/29/2017 at 6:21am |
|
Ya know, you may just have 290 heads and valve cover on a 360 block. Check number cast under motor mount plate (feel for it) and block casting number. Unless you want to pull a head and measure bore and stroke .
|
|
|
Frank Swygert
|
|
|
|
|
alexrains
Supporter of TheAMCForum
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/29/2017 at 6:32am |
|
Thank you.
Checking the head-casting, alongside the "290" cast on the block made me sure, I only have a tiny engine... might have been a 343 also, but isn´t. Reason why I did not believe the "290" on the block is, that the Jav has so many torques to give :-) It has more grunt, then the 400 in my Olds. But still please somebody enlighten me on the "AG" casting. |
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
|
|
|
White70JavelinSST
Supporter of TheAMCForum
Joined: Aug/08/2012 Location: Minnesota Status: Offline Points: 4867 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/29/2017 at 8:49am |
|
A 290 head has rectangular exhaust ports. Like in this photo below.
 A 360 head will have dog leg exhaust ports.  An over bore providing a bit more displacement and a wicked cam with higher compression will yield a small bore engine with a lot of grunt. AMC engines are noted for their torque producing capacity. The 70's Trans Am racing engines were limited to 305 cubic inches, not a whole lot more than an overbored 290 for cubic inch displacement. Those engines were tweaked seriously and produced upwards of 450 horsepower. |
|
|
70 Javelin SST, second owner, purchased 1972
|
|
|
|
|
alexrains
Supporter of TheAMCForum
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/29/2017 at 9:11am |
|
White70: thank you for bringing back hope.
Actually, I would not care that much, but it will be my wife´s car and she expects torque, acceleration and sound. She will like the TransAm example :-) If, by chance, anybody knows the meaning of "AG", please tell me. Thx, Alex. |
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
|
|
|
Lyle
AMC Addicted 
Joined: Jul/17/2014 Location: None Status: Offline Points: 772 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/31/2017 at 7:49am |
|
Pure speculation here; Knorr Bremse "AG" did prototyping of stir casting techniques and were trying to break into the North American market. I cannot find a direct link to AMC but this stir casting purportedly would reduce weight by 30% so maybe AMC R&D did some test castings as this would be a big gain.
Weigh your heads and see how they measure up to factory spec.
|
|
|
|
|
alexrains
Supporter of TheAMCForum
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/31/2017 at 7:58am |
|
Interesting theory, will investigate further.
Thank you!
|
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
|
|
|
alexrains
Supporter of TheAMCForum
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/02/2017 at 12:42am |
|
In the 1920's, the predecesssor of BMW was a part of Knorr Bremse. But in the 60's, Knorr wasn't a stock company (german: Aktiengesellschaft = AG) anymore, but a limited company. So AG on head casting must mean something different. Sad, as the story became interesting, when one thinks about BMW's job on the AMX/3... Here are the castings:  http://i970.photobucket.com/albums/ae190/alexrains/IMG-20170328-WA000.jpg  http://i970.photobucket.com/albums/ae190/alexrains/IMG-20170328-WA001.jpg |
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
|
|
|
alexrains
Supporter of TheAMCForum
Joined: Oct/16/2016 Location: Austria, Europe Status: Offline Points: 83 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/12/2017 at 12:51pm |
|
Up with the thread, hoping for more info...
|
|
|
--------------------------
1971 Javelin AMX 1966 Olds 442 1964 Volvo P-1800S |
|
|
|
|
Boris Badanov
AMC Addicted
Joined: Dec/14/2013 Location: NH USA Status: Offline Points: 4210 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/12/2017 at 4:16pm |
|
It's a 290.
I doubt it is anything special. I suppose you could pull a head bolt and confirm it is a 7/16-14 thread. It is possible to adapt 290 heads to the later high deck block with a little machining. 1970 and later are 1/2-13 threads. |
|
|
Gremlin Dreams
|
|
|
|
|
Post Reply
|
Page 12> |
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Click for TheAMCForum Rules
Topic Options